import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

// if (location.href.indexOf('code') > -1&&location.href.indexOf('code') ) {
//   alert(456)
//   await store.dispatch('user/resetToken')
//   alert(789)
//   location.reload()
// }

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  const userAgent = navigator.userAgent // 取得浏览器的userAgent字符串
  if (to.path === '/browserLow') {
    // if is logged in, redirect to the home page
    if (userAgent.indexOf('Chrome') > -1) {
      next({ path: '/' })
      NProgress.done()
    } else {
      next()
      NProgress.done()
    }
    // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
    return false
  } else {
    if (userAgent.indexOf('Chrome') < 0) {
      console.log('不是谷歌浏览器')
      next({ path: '/browserLow' })
      NProgress.done()
      return false
    }
  }
  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
    } else {
      if (location.href.indexOf('code') > -1&&whiteList.indexOf(to.path) === -1 ) {
        store.dispatch('user/resetToken').then(()=>{
          next(`/login?redirect=${to.path}`)
        })
      }else{
        // determine whether the user has obtained his permission roles through getInfo
        const hasRoles = store.getters.roles && store.getters.roles.length > 0
        if (hasRoles) {
          next()
        } else {
          try {
            // get user info
            // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
            const { roles } = await store.dispatch('user/getInfo')

            // generate accessible routes map based on roles
            const accessRoutes = await store.dispatch('permission/generateRoutes', roles)

            // dynamically add accessible routes
            router.addRoutes(accessRoutes)
            // hack method to ensure that addRoutes is complete
            // set the replace: true, so the navigation will not leave a history record
            next({ ...to, replace: true })
          } catch (error) {
            // remove token and go to login page to re-login
            await store.dispatch('user/resetToken')
            Message.error(error || 'Has Error')
            next(`/login?redirect=${to.path}`)
            NProgress.done()
          }
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      console.log(to)
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
